I have a MacBook Air on which I have installed a Win 7 professional virtual machine using VMFusion Ware. I have had this working well for more than a year. My problem is lack of memory. When I click on computer from Win Start it shows 20gb out of 40gb available on the C drive. The virtual machine, however, shows only 1.56 out of 56 gb available in the Shared folders\\vm-host)(Z drive. At times I can't start the machine, or it will suspend with message that it is critically short of resources. Worried about moving things onto the C drive which apparently has plenty of memory